A5074492936- Paleontology and Stratigraphy of Fossils
- Marine Biology and Ecology Research
- Ocean Acidification Effects and Responses
- Geology and Paleoclimatology Research
- Geological formations and processes
- Geological and Geophysical Studies
- Marine Bivalve and Aquaculture Studies
- Cephalopods and Marine Biology
- Marine and environmental studies
- Isotope Analysis in Ecology
- Geological Studies and Exploration
- Calcium Carbonate Crystallization and Inhibition
- Microbial Community Ecology and Physiology
- Coral and Marine Ecosystems Studies
- Coastal and Marine Dynamics
- Geological and Geochemical Analysis
- Food Industry and Aquatic Biology
- Paleontology and Evolutionary Biology
- Geological Modeling and Analysis
- Environmental DNA in Biodiversity Studies
- Water Quality and Resources Studies
- Maritime Transport Emissions and Efficiency
- Marine Ecology and Invasive Species
- Oil Spill Detection and Mitigation
- Karst Systems and Hydrogeology
San Jose State University
2017-2023
Ithaca College
2016-2018
University of Southern California
2010-2016
Southern California University for Professional Studies
2010
Brief but intense global warming 56 million years ago had few long-term effects on the ecology and evolution of marine mollusks.
The continued release of fossil fuel carbon into the atmosphere today means it is imperative to understand Earth system response CO2 rise, and geologic record offers unique opportunities investigate such behavior. Stomatal paleosol proxies demonstrate a large change in atmospheric pCO2 across Triassic-Jurassic (T-J) transition, concomitant with eruption emplacement Central Atlantic Magmatic Province (CAMP) splitting Pangea. As one “big 5” mass extinctions—when so-called modern fauna was...
Abstract Body size is an important trait with implications for energy use and ecology as well generation time evolutionary rates. Turritelline gastropods are widely distributed through geologic space, making them excellent group evaluating macroevolutionary patterns. To evaluate the pattern of body-size change in turritelline gastropods, we compiled a dataset shell lengths 316 species spanning Jurassic to Recent. Type specimens were almost always significantly larger than specimen...
ABSTRACT: An explanation for the depositional history of Gosport Sand has proven to be as puzzling its diverse mollusk fossils is beguiling. We propose that shifting delta lobes produced patchy environments which accumulated form and likely other glauconite- fossil-rich shell beds Gulf Coastal Plain Paleogene. present facies mineralogical data suggest glauconite in was deposited during relatively stable environmental conditions. Increased maturity taphonomic alteration are attributed...
Amidst the COVID-19 upheaval to higher education, a grantor-led community of practice (CoP) supported faculty members deliver an innovative, sustainability-oriented entrepreneurship curriculum and maintain resiliency as teaching professionals. This paper discusses how through engagement in CoP, this group from across engineering, material science, business, geosciences demonstrated resilience, adaptability, pivoted create for students real time, events pandemic unfolded throughout 2020...
Abstract We use scanning electron microscopy imaging to examine the shell microstructure of fossil and living species in five families caenogastropods (Strombidae, Volutidae, Olividae, Pseudolividae, Ancillariidae) determine whether parallel or convergent evolution is responsible for development a unique caenogastropod trait, extreme parietal callus (EPC). The EPC defined as substantial thickening both spire on ventral surface such that it covers 50% more surface. Caenogastropods whole...
Abstract Extinction and delayed recovery during the end-Permian extinction Early Triassic has been linked to environmental instability brought on by volcanic outgassing greenhouse conditions, but relative importance of myriad stressors at this time dynamics is not well understood. Previous workers have documented both overall biotic for entirety Triassic, also incipient recoveries that appear occur relatively early after initial event. Here, we explore patterns using several metrics...
The transition from ecosystems still undergoing recovery in the Early Triassic to fully recovered Middle is not well constrained for eastern Panthalassa. While complex level-bottom and reef systems have been described elsewhere there evidence of lingering deleterious conditions possible regional heterogeneity recorded sedimentary units Western U.S. We studied two sections Anisian-aged mixed carbonate-siliciclastics Favret Formation Tobin Range Prida Humboldt western Nevada. Stratigraphic...